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Title: Multi-annual survey of health status disturbance in the Bilbao estuary (Bay of Biscay) based on sediment chemistry and juvenile sole (Solea spp.) histopathology
Authors: Briaudeau, T.; Zorita, I; Cuevas, N.; Franco, J.; Marigomez, I; Izagirre, U.
Citation: MARINE POLLUTION BULLETIN, 2019, 145, 126-137
Abstract: The Bilbao estuary (SE Bay of Biscay) is a recovering ecosystem whose sediments are still contaminated. They represent a potential risk for the biota including benthic and demersal species living in direct contact with the sediment. In this context, the present study aims to survey trends of the health status of the Bilbao estuary based on sediment chemistry and sole (Solea spp.) histopathology. Monitoring campaigns were carried out every autumn from 2011 to 2017 along the estuary. Contaminant levels were measured in sediments; liver, gills and gonads of juvenile fish were collected for histopathology. Overall, contaminant levels fluctuated throughout the years, with highest values recorded in the earlier years of the study period. Sole histopathology showed alterations of mild severity. Results permitted to assess the environmental health status of the Bilbao estuary during 7 years, although no clear temporal trend was detected. Longer-term monitoring programmes are necessary to confirm the ecosystem recovery.
Keywords: Bilbao; Pollution monitoring; Sediment; Solea spp.; Histopathology; FLOUNDER PLATICHTHYS-FLESUS; POLYCYCLIC AROMATIC-HYDROCARBON; CULTURAL ECOSYSTEM SERVICES; HAKE MERLUCCIUS-MERLUCCIUS; DAB LIMANDA-LIMANDA; SEX STEROID-LEVELS; SENEGAL SOLE; CONTAMINATED SEDIMENTS; BASQUE ESTUARIES; METAL POLLUTION
Issue Date: 2019
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Type: Article
Language: 
DOI: 10.1016/j.marpolbul.2019.05.034
URI: http://dspace.azti.es/handle/24689/956
ISSN: 0025-326X
E-ISSN: 1879-3363
Funder: Bilbao Bizkaia Water Consortium [CTM2012-40203-C02-01]
Spanish MINECO [CTM2012-40203-C02-01]
University of the Basque Country UPV/EHUUniversity of Basque Country [UFI 11/37]
Basque Government through Consolidated Research Groups fellowship [IT810-13]
Ifiaki Goenaga - Technology Centres Foundation
Appears in Publication types:Artículos científicos



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